/*
 * Copyright (C) 2012-2013 University of Washington
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package org.opendatakit.survey.android.utilities;

import org.opendatakit.survey.android.R;

import android.content.Context;
import android.database.Cursor;
import android.support.v4.widget.SimpleCursorAdapter;
import android.view.View;
import android.widget.TextView;

/**
 * Implementation of cursor adapter that displays the version of a form if a
 * form has a version.
 *
 * @author mitchellsundt@gmail.com
 *
 */
public class VersionHidingCursorAdapter extends SimpleCursorAdapter {

  private final Context ctxt;
  private final String versionColumnName;
  private final ViewBinder originalBinder;

  public VersionHidingCursorAdapter(String versionColumnName, Context context, int layout,
      String[] from, int[] to) {
    super(context, layout, null, from, to, 0);
    this.versionColumnName = versionColumnName;
    ctxt = context;
    originalBinder = getViewBinder();
    setViewBinder(new ViewBinder() {

      @Override
      public boolean setViewValue(View view, Cursor cursor, int columnIndex) {
        String columnName = cursor.getColumnName(columnIndex);
        if (!columnName.equals(VersionHidingCursorAdapter.this.versionColumnName)) {
          if (originalBinder != null) {
            return originalBinder.setViewValue(view, cursor, columnIndex);
          }
          return false;
        } else {
          String version = cursor.getString(columnIndex);
          TextView v = (TextView) view;
          if (version != null) {
            v.setText(ctxt.getString(R.string.version) + " " + version);
            v.setVisibility(View.VISIBLE);
          } else {
            v.setText(null);
            v.setVisibility(View.GONE);
          }
        }
        return true;
      }
    });
  }

}